Phylogenetic relationships of the Antarctic euphausiids inhabiting the Ross Sea and the adjacent regions of Southern Ocean
Ross Sea supports a large concentration of Antarctic krill (Euphausia superba Dana, 1850) and Ice krill (Euphausia crystallorophias Holt & Tattersal, 1906) that have a great ecological significance (Azzali & Kalinowski, 1999; Sala et al., 2002). The aim of this study was to further our under...
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2011
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ftdatacite:10.21411/cbm.a.e65e7745 2023-05-15T13:59:13+02:00 Phylogenetic relationships of the Antarctic euphausiids inhabiting the Ross Sea and the adjacent regions of Southern Ocean GIORDANO, Daniela RINELLI, Paola RUSSO, Aniello SALA, Antonello AZZALI, Massimo LA SPADA, Gina GIULIANO, Laura CRISAFI, Ermanno DE DOMENICO, Elena YAKIMOV, Michail 2011 https://dx.doi.org/10.21411/cbm.a.e65e7745 http://application.sb-roscoff.fr/cbm/doi/10.21411/CBM.A.E65E7745 unknown Station Biologique de Roscoff (SBR) https://dx.doi.org/10.21411/cbm.i.9ee1d1e2 Text Article article-journal ScholarlyArticle 2011 ftdatacite https://doi.org/10.21411/cbm.a.e65e7745 https://doi.org/10.21411/cbm.i.9ee1d1e2 2021-11-05T12:55:41Z Ross Sea supports a large concentration of Antarctic krill (Euphausia superba Dana, 1850) and Ice krill (Euphausia crystallorophias Holt & Tattersal, 1906) that have a great ecological significance (Azzali & Kalinowski, 1999; Sala et al., 2002). The aim of this study was to further our understanding of the distribution and phylogeny of krill species that were collected in the Ross Sea during the XIX PNRA expedition. Krill from 33 net samples were examined by sequencing parts of two mitochondrial genes; 530 bp of the gene 16S from a total of 20 specimens and 983 bp of NADH from 200 specimens. BIO-ENV analysis showed that the distribution of these species correlated best with water temperature than bottom depth and the ice presence. AMOVA analysis, conducted using the NADH data among geographic populations, revealed no significant differences of nucleotide diversity within the two Euphausia species: E. superba (n = 100, h = 0.97533 ± 0.0472, pi = 0.53433 ± 0.17212), E. crystallorophias (n = 100, h = 0.81762 ± 0.07431, pi = 0.48578 ± 0.46825). Most of the variability is associated with individuals and may depend on the high polymorphism of the species. AMOVA analysis between net samples showed no significant differences in all species. Text Antarc* Antarctic Antarctic Krill Euphausia superba Ross Sea Southern Ocean DataCite Metadata Store (German National Library of Science and Technology) Antarctic Ross Sea Southern Ocean The Antarctic |
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DataCite Metadata Store (German National Library of Science and Technology) |
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description |
Ross Sea supports a large concentration of Antarctic krill (Euphausia superba Dana, 1850) and Ice krill (Euphausia crystallorophias Holt & Tattersal, 1906) that have a great ecological significance (Azzali & Kalinowski, 1999; Sala et al., 2002). The aim of this study was to further our understanding of the distribution and phylogeny of krill species that were collected in the Ross Sea during the XIX PNRA expedition. Krill from 33 net samples were examined by sequencing parts of two mitochondrial genes; 530 bp of the gene 16S from a total of 20 specimens and 983 bp of NADH from 200 specimens. BIO-ENV analysis showed that the distribution of these species correlated best with water temperature than bottom depth and the ice presence. AMOVA analysis, conducted using the NADH data among geographic populations, revealed no significant differences of nucleotide diversity within the two Euphausia species: E. superba (n = 100, h = 0.97533 ± 0.0472, pi = 0.53433 ± 0.17212), E. crystallorophias (n = 100, h = 0.81762 ± 0.07431, pi = 0.48578 ± 0.46825). Most of the variability is associated with individuals and may depend on the high polymorphism of the species. AMOVA analysis between net samples showed no significant differences in all species. |
format |
Text |
author |
GIORDANO, Daniela RINELLI, Paola RUSSO, Aniello SALA, Antonello AZZALI, Massimo LA SPADA, Gina GIULIANO, Laura CRISAFI, Ermanno DE DOMENICO, Elena YAKIMOV, Michail |
spellingShingle |
GIORDANO, Daniela RINELLI, Paola RUSSO, Aniello SALA, Antonello AZZALI, Massimo LA SPADA, Gina GIULIANO, Laura CRISAFI, Ermanno DE DOMENICO, Elena YAKIMOV, Michail Phylogenetic relationships of the Antarctic euphausiids inhabiting the Ross Sea and the adjacent regions of Southern Ocean |
author_facet |
GIORDANO, Daniela RINELLI, Paola RUSSO, Aniello SALA, Antonello AZZALI, Massimo LA SPADA, Gina GIULIANO, Laura CRISAFI, Ermanno DE DOMENICO, Elena YAKIMOV, Michail |
author_sort |
GIORDANO, Daniela |
title |
Phylogenetic relationships of the Antarctic euphausiids inhabiting the Ross Sea and the adjacent regions of Southern Ocean |
title_short |
Phylogenetic relationships of the Antarctic euphausiids inhabiting the Ross Sea and the adjacent regions of Southern Ocean |
title_full |
Phylogenetic relationships of the Antarctic euphausiids inhabiting the Ross Sea and the adjacent regions of Southern Ocean |
title_fullStr |
Phylogenetic relationships of the Antarctic euphausiids inhabiting the Ross Sea and the adjacent regions of Southern Ocean |
title_full_unstemmed |
Phylogenetic relationships of the Antarctic euphausiids inhabiting the Ross Sea and the adjacent regions of Southern Ocean |
title_sort |
phylogenetic relationships of the antarctic euphausiids inhabiting the ross sea and the adjacent regions of southern ocean |
publisher |
Station Biologique de Roscoff (SBR) |
publishDate |
2011 |
url |
https://dx.doi.org/10.21411/cbm.a.e65e7745 http://application.sb-roscoff.fr/cbm/doi/10.21411/CBM.A.E65E7745 |
geographic |
Antarctic Ross Sea Southern Ocean The Antarctic |
geographic_facet |
Antarctic Ross Sea Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Antarctic Krill Euphausia superba Ross Sea Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctic Krill Euphausia superba Ross Sea Southern Ocean |
op_relation |
https://dx.doi.org/10.21411/cbm.i.9ee1d1e2 |
op_doi |
https://doi.org/10.21411/cbm.a.e65e7745 https://doi.org/10.21411/cbm.i.9ee1d1e2 |
_version_ |
1766267740705783808 |